* Removed Non-English sample files from doc/sample/ (bugreport:6750)

- sample/npc_test_ev.txt was originally used to demonstrate nifty event related commands.
 - sample/npc_test_arena.txt is rather defunct as there are fully working scripts within npc/ that demonstrate the same functionality.
 - sample/npc_test_str.txt explains how StRing != striNG. This is documented in doc/script_commands.txt
* Slight update to CMakeLists.txt for README.txt 

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@16982 54d463be-8e91-2dee-dedb-b68131a5f0ec

CMakeLists.txt

@@ -481,6 +481,7 @@ set( RUNTIME_FILES
 	"${CMAKE_CURRENT_SOURCE_DIR}/map-server.sh"
 	"${CMAKE_CURRENT_SOURCE_DIR}/mapserv-sql.bat"
 	"${CMAKE_CURRENT_SOURCE_DIR}/pcre3.dll"
+	"${CMAKE_CURRENT_SOURCE_DIR}/README.txt"
 	"${CMAKE_CURRENT_SOURCE_DIR}/runserver-sql.bat"
 	"${CMAKE_CURRENT_SOURCE_DIR}/serv.bat"
 	"${CMAKE_CURRENT_SOURCE_DIR}/start"
@@ -492,7 +493,6 @@ set( RUNTIME_DIRECTORIES
 	"doc"
 	"log"
 	"npc"
-	"readme"
 	"sql-files"
 	"tools"
 	)